html, body {
  margin: 0;
  padding: 0;
  background: transparent;
  overflow: hidden;
  font-family: Arial, Helvetica, sans-serif;
}

.overlay-shell {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 18px;
  box-sizing: border-box;
}

.overlay-card {
  width: 100%;
  max-width: 980px;
  border-radius: 22px;
  padding: 14px 16px 16px;
  color: #fff;
  background:
    radial-gradient(circle at left center, rgba(0,150,255,.18), transparent 25%),
    radial-gradient(circle at right center, rgba(255,140,0,.22), transparent 28%),
    linear-gradient(180deg, rgba(8,10,18,.94) 0%, rgba(16,20,30,.94) 100%);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 14px 42px rgba(0,0,0,.35);
}

.topline {
  text-align: center;
  font-weight: 800;
  letter-spacing: 2px;
  color: #f7c14b;
  margin-bottom: 10px;
  font-size: 13px;
}

.main {
  display: grid;
  grid-template-columns: 140px 1fr 110px;
  gap: 14px;
  align-items: center;
}

.logo {
  width: 140px;
  max-width: 100%;
  display: block;
}

.info {
  min-width: 0;
}

.headline {
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 8px;
}

.url {
  font-size: 26px;
  font-weight: 800;
  color: #ffd46c;
  line-height: 1.15;
  word-break: break-word;
}

.sub {
  margin-top: 8px;
  font-size: 15px;
  color: rgba(255,255,255,.86);
}

.qr {
  width: 110px;
  height: 110px;
  object-fit: contain;
  background: #fff;
  padding: 6px;
  border-radius: 10px;
}

@media (max-width: 820px) {
  .main {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .logo,
  .qr {
    margin: 0 auto;
  }

  .headline {
    font-size: 24px;
  }

  .url {
    font-size: 19px;
  }
}